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8th Class Mathematics Comparing Quantities Question Bank Comparing Quantities

  • question_answer
    Monika purchased a pressure cooker at \[{{\left( \frac{\text{9}}{\text{16}} \right)}^{\text{th}}}\] of its selling price and sold it at 8% more than its S.P. Find her gain percent.

    A)  20%               

    B)  10%   

    C)  30%   

    D)         40%   

    Correct Answer: A

    Solution :

    Let the selling price be Rs.100 Then, cost price of cooker\[\text{=Rs}\text{.}\left( \frac{9}{10}\times 100 \right)\] \[\text{=Rs}\text{.90}\] and selling price of cooker for Monika \[\text{=Rs}\text{.100+8 }\!\!%\!\!\text{ }\] of \[\text{Rs}\text{. 100=Rs}\text{. 108}\] \[\therefore \text{ Gain }\!\!%\!\!\text{ =}\left( \frac{108-90}{90} \right)\times 100=20%\]


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